Do you spoon while you sleep? If so, that’s a good sign: Partners who sleep less than an inch from each other are more likely to have happy relationships than the ones who keep to opposite sides of the bed, according to a recent survey.

And we don’t just mean that you can both recite every word of Anchorman. When you use the same function words—such as pronouns, prepositions, conjunctions, and quantifiers—you have a higher likelihood of getting together and keeping it together, per a recent study.

Do you regularly break out the popcorn and PJs? When partners watch films about relationships together and then chat about what went down, they're half as likely to break up over the next three years as couples who don't get their rom-com movie-watching on, per recent research. One point for The Notebook!

A recent study found that newlyweds' gut feelings are a better indication of what their relationship will look like in the future than self-reported feelings. So if you don't already, make like Olivia Pope and listen to your gut—if it's feeling good, your relationship probably is, too.

Regular romps contribute to long and happy marriages, according to a recent study. (They also make you personally happier, per a recent survey.) The lesson? In your household, you should definitely aim to make love (not war).